diff --git a/src/compat.py b/src/compat.py
index 9f60a25755..025f5d4d8d 100644
--- a/src/compat.py
+++ b/src/compat.py
@@ -94,6 +94,9 @@ async def __aexit__(self, exc_type, exc_value, traceback):
 )
 
 
+# Reuse SSLContext as aiohttp does:
+# https://github.com/aio-libs/aiohttp/blob/b51610b93b2ae15c4062e3a1680a536ba5f4c5c4/aiohttp/connector.py#L906
+@functools.lru_cache(None)
 def ssl_create_default_context():
     """`ssl.create_default_context`"""
     context = ssl.create_default_context()